Reactions of the iminoesters 3a‐c with hydrazine or 1,2‐dimethylhydrazine gave 4,5‐dihydro‐4a‐c or 2,5‐dihydro‐1,2,4‐triazin‐6(1H) ones 7a‐c, respectively. When methylhydrazine was employed, 1‐methyl‐4, 5‐dihydro‐ 5a‐c and 2‐methyl‐2,5‐dihydro‐1,2,4‐triazin‐6(1H) ones 6a‐c were obtained. Compounds 6a‐c exist as zwitterions in the solid state and in polar aprotic solvents. Copyright © 1978 Journal of Heterocyclic Chemistry
Camparini, A., Celli, A.M., Ponticelli, F., Tedeschi, P. (1978). Synthesis and Structure of Dihydro-1,2,4-triazin-6(1H)-ones. JOURNAL OF HETEROCYCLIC CHEMISTRY, 15(8), 1271-1276 [10.1002/jhet.5570150806].
Synthesis and Structure of Dihydro-1,2,4-triazin-6(1H)-ones
Camparini, Alfredo;Celli, Angela Maria;Ponticelli, Fabio;
1978-01-01
Abstract
Reactions of the iminoesters 3a‐c with hydrazine or 1,2‐dimethylhydrazine gave 4,5‐dihydro‐4a‐c or 2,5‐dihydro‐1,2,4‐triazin‐6(1H) ones 7a‐c, respectively. When methylhydrazine was employed, 1‐methyl‐4, 5‐dihydro‐ 5a‐c and 2‐methyl‐2,5‐dihydro‐1,2,4‐triazin‐6(1H) ones 6a‐c were obtained. Compounds 6a‐c exist as zwitterions in the solid state and in polar aprotic solvents. Copyright © 1978 Journal of Heterocyclic Chemistry
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https://hdl.handle.net/11365/19568
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